Application Value of Transcranial Doppler Ultrasound and Ultrasonic Measurement of ONSD in Increased Intracranial Hypertension in Patients with Craniocerebral Injury
Objective To explore the application value of transcranial Doppler ultrasound(TCD)and ultrasonic measurement of optic nerve sheath diameter(ONSD)in increased intracranial hypertension in patients with craniocerebral injury.Methods Clinical data of 160 patients with craniocerebral injury from January 2021 to December 2022 were retrospectively analyzed.The patients were divided into observation group(n=80)and control group(n=80)based on the presence of increased intracranial hypertension.They were measured by TCD and ONSD.The ONSD and TCD parameters of the two groups were compared.The relationship between increased intracranial hypertension with ONSD and TCD parameters was analyzed.The diagnostic efficacy of ONSD value,mean velocity(Vm),systolic peak flow velocity(Vs),resistance index(RI)and pulse index(PI)was analyzed by establishing a receiver operating characteristic(ROC)curve model.Results The ONSD values(5.44±1.16)mm,RI(0.77±0.21),and PI(2.32±1.18)were higher in the observation group than those in the control group,Vs(112.58±26.63)cm/s and Vm(48.83±18.96)cm/s were lower than those of the control group(P<0.05).In the severe group,the ONSD values(6.16±1.13)mm,RI(0.90±0.21),PI(3.63±1.25)were higher than those in the moderate and mild groups.The Vs(100.83±30.80)cm/s and Vm(30.71±13.36)cm/s were lower than those in the moderate and mild groups(P<0.05).The increased intracranial hypertension was positively correlated with ONSD values,RI and PI(r=0.517,0.569 and 0.652;P<0.001)and was negatively correlated with Vs and Vm(r=-0.340,-0.703;P<0.001).Through ROC curve analysis,the area under curve of ONSD value,Vs,Vm,RI,PI and combined diagnosis of severe increased intracranial hypertension were 0.806,0.670,0.921,0.809,0.960 and 0.996,respectively.Conclusion The TCD and ONSD have positive significance in evaluating the changes of intracranial hypertension in patients with craniocerebral injury.Ultrasonic spectrum images can directly reflect the changes of intracranial hypertension,and ONSD values can be changed due to the increase of intracranial hypertension.